Yieldable guide for coating machines



Jan. 1

l. F. DITTMAR YIELDABLE GUIDE FOR COATING MACHINES @WM/1 my Filed July27 Patented dan. l, 1924..

Lafttt IRVIN F. DITTMAR, OF WILLIAIVSPORT, PENNSYLVANIA, ASSIGNOR TO THECROOKS- DITTMAR COMPANY, OIF WILLIAMSPOBJT, PENNSYLVANIA, .AvCORPORATION OF PENNSYLVANIA.

YIELDABLE GUIDE FOR COATING IYIACHINES.

Application filed July 27, 1922.

To all whom 'it may concern Be it known that I, IRVIN F. DITTMAR, acitizen of the United States, residing at Williamsport, in the county ofLycoming and State of Pennsylvania, have invented certain new and usefulImprovement-s in Yieldable Guides for Coating Machines, of which thefollowing is a specification, reference being had therein to theaccompanying drawing.

This invention relates to certain new and useful improvements inyieldable guides for coating machines and more particularly to guidesadapted to be used in connection with machinesL for coating strips: oflumber in which the strip is passed through the machine on edge, theobject being to provide a guide which is so constructed that it willyield so as to allow crooked pieces and pieces showing a variation inthickness to pass through without stoppage, which causes roller marks tospoil the pieces at the point of roller contact, thereby overcoming thedii'iculties now existing in having to stop the machine and remove thestrip when it has become jammed in the guideway.

Another and further object of the invention is to provide a yieldableguide formed of superposed guiding members, each guide member beingformed of spaced members held in proper relation with each other in Sucha manner that they are capable of moving laterally in 'order to allowan'irregular strip to pass freely through the guide.

Other and further objects and advantages of the invent-ion will behereinafter set forth and the novel features thereof dened by theappended claims. l l In the drawings, Y f

Figure 1 is a perspective view of a portion of a guideway constructed inaccordance with my invention;

Figure 2 is a vertical sectionvthrough the same showing the manner ofconnecting the guide members of the guideway to the supporting members;Y

VFigure 3 is a vertical section through a slightly modified form ofguideway;

Figure 4 is a vertical section through still anotherform of guideway;

Figure 5 is a vertical section through still another form of guideway;and- Figure-6 is va vertical section through an* other form o fguideway,

Serial No. 577,869.

In the drawing 1 and 2 indicate supporting members which are hereinshown in the form of angle irons to which are adapted to be connectedguide members 3 and 4C having notches 5 and 6 at the point ofapplication of the coating so as to allow Ithe strip to be coated as itpasses through the guideway.

rlhe upper guide 3 is formed of an invert# ed U-shaped strip of flexiblematerial having its lower edges cut away to form a fe male guiding edgeand the lower guide member t is formed of a U shaped strip of flexiblemetal having its upper edges cut away to form a male guiding edge.

The guide members formed with this particular construct-ion of guidingedges are especially adapted to receive strips of lumber havinginterlocking male and female edges and itis, of course, understood thatthe particular construction of the guiding edges can be changed to fitthe shape of the edges of the strip to be coated and therefore I do'notwish to limit'myself to the use ofa guideway formed of guide membershaving any particular construction of guiding edges as I am aware thatthe conguration of the guiding edges can be readily changed to conformto the edge of the strip of lumber to be coated without departing fromthe spirit of my invention.

In the drawing I have shown'the guide member 3 connected to the supportl by a bolt 9 `and spaced therefrom by spring washer l() in order toallow the legs of the guideway to expand and contract. The lower guide 4is connected to the lower support by a bolt 11 which passes through oneof the legs and is provided with spring washers 12 and 13 in order to'allow the legs of the guideway to expand and contract, it, of course,being understood that a number of bolts are employed for connecting theguide members to the supports and while I have shown means forconnecting these guide members so as to allowthe inner leg of each guidemember to expand and contract, I am aware that by rigidly connecting theguide members tothe support, the outer legs of the substantiallyU-shaped guide members will expand and contract so as to` allow a stripof lumber to pass freely through the guideway formed by said members'and I do not wish to limit myself :to

any particular means for connecting the guide members forming theguideway to the supports, asI am aware that these members can beconnected to the supports in various ways without affecting theoperation of the members.

In the preferred embodiment of the in vention as shown in Figures 1 and2, the guideway formed by the guide members 3 and 4 is formed otsubstantially Ufshaped members to form yieldable legs, while in Figure 3the upper and lower guide menibers forming the guideway are Jformed ofspaced strips of metal 14 and 15,' the upper strips 14 being spacedapart by tapering block 16 and secured together by aV bolt 17 on whichis mounted a spring washer 18 which allows the spaced strips to move inrespect to each other.

The spacedV strips `forming the guide member 15 are spaced v'apart by atapering block 19 and are secured together by aj bolt 20' which passesthrough 'the 'block and is provided with a spring washer 21, ythe upperedge lof the-"strip being ciitaway to'form a male guidingY edge;

In this construction, the spaced strips forming the guide members 'areyieldably held together soasto provide a yieldable guideway for thestrip'as it passes'therethrough, as` clearly shown. y 4

In Figure 4 I show the upper guide member 2Q `formed of spaced'stripssecured' together by bolts QS'and 24" provided with springwashers 26 and spaced 'apart'at their upper end' by a block 'QZ'whichallows the spaced members `constituting the guide member to'move inrespect to one another, the lower edges being'cut away-to vform atemaley guiding edge. The lower guide member 28 formed'of" spacedstripssecured together by bolts'2'9 andSO carries spring washers 31arranged betweenthe stripsv in such a mannerthat the strips 'are Jfreeto move in respect to one another, theA lower "3 nut of the boltY 3()being drawn tight while the upper nutY ofthe b olt 29' is spa'cedffromthe strip so as toallowthe strips to yield in respect to one another,the upper edges of the strips being cutaw'ay vto'forin a :male guidingedge. f'

In Figure 5 of the drawing Il show a guideway formed of'upper andlowerguide members 32- and" 33, the upper guidemeiriber 32 being formedoffapair ofstrips'between which. is arranged an elastic Spacing member34,l said 'strips being securedv toi gether and held so as to' `holditheelastic strip under compression by Abolts which` areprovidedwithspringwashers 36.

-lhelower guid-efBB is formed o-a pair oa-strips; between. which; isf"arranged tan; eletti@ Sr estre f raeiabrl, ,Seide :Strips-beine securedtogether bybolts 3 8gand139, thezn-ii't; @I1-the belt-'1,- 3811 beinedrawn" tahtsdv ,este compressi theA elastic; materiali bet ,en `tl'ieystrips while the nut on the bolt 39 is loose in order to allow thestrips: to move in respect vto one another.

In Figure 6 I show a guideway formed of an upper guide member 40 and alower guide member 41, the upper guide member being formed of .a Vpairof strips spaced. apart by elastic washer' 42 and secured together bybolts 43:carrying spring washers 44. The lower guide member 4l isJformed of strips spaced apart by elastic washers 45 and securedtogether by bolts 46 and 47, the nut of the bolt 46 being drawn tight soas to 'place the elastic material 'under compression whiley the nut onthe bolt 47 is loose in order to allow the strips to move in respect toone another lso that the strip will pass freely through the guidewavformed by th'eguide members.

'While in the" cha'wing I have shown various forms oi'"mounti'ng andconstructing the guide members forming the guideway, I ain aware thatvarious changes can be made without departing from the spirit of myinvention and I' do not-wish'to confine myselfjto the use ofjanyparticular construction Aof spring washer as I' am aware that a washerhaving more than one convolutioncanbe used or a flat` spring could besubstituted for the washer and the same result obtained. j

From the foregoing description it will be seen that I have 'provideda'guideway formed of a pair of spaced guiding members, each guide memberhaving spaced guiding edges which are yieldably 'heldinl a predeterminedposition so als to allowthe guiding edges to expand andcon'trafct toconform tothe' shape ofthest'rip in itsjpassage*therethrough to preventthe strip Jfrom j ammingso that the speed of the machineffor coating the.st-rip can vbe increased and all danger o'ty having a: constructionthat' the stripjcan be readilyk placed between4 the guidewar land fedeasily therethrough.

A'In' Figure 1 of the drawing I' have shown the guide` strips Band 4forming the v'guideway with notches 5 and 6 and' while I have only shownaj portion kof the guideway with a pair 'ofopposingl notches, it is,ofcourse, understoodfthat-the guideway can be formed with any numberg'otnotchesdesiredto meet the'speciiic-requiremeiitoffthe'coating'beingapplied. I5 am alsoawarethat the particular fshapegf'ofrthese; notchescan` be changed to conform to the shape of the applying device.

What I claim is l. A guideway for coating machines comprising spacedguide members, each guide member having yieldably spaced guidin.r edfes.

A guideway for coating machines comprising spaced guides, each guidebeing formed of yieldably spaced members and means for yieldablysupporting said guide.

3. A guideway for coating machines comprising spaced substantiallyU-shaped guides, one guide being provided with a male guiding' edge andthe other guide with a female guiding edge.

e. A guideway for finishing machines comprising spaced notched guides,each guide being formed of spaced members yieldably held in respect toone .another and means for yieldably supporting said guide.

5. A. guideway for wood finishing machines comprising spaced guidingmembers,

each guiding member being formed of spaced members, bolts for securingsaid members together and flexible means disposed on said bolts forallowing said members to move in respect to one another.

6. A guideway for wood coating machines comprising spaced guides, eachguide being formed of spaced members having beveled edges, bolts forsecuring said members together and flexible means disposed between saidmembers and on said bolts for yieldably holding said members in spacedrelation.

7. A guideway for wood finishing machines comprising spaced guidemembers provided with notches, said guides being formed of spacedmembers, bolts for se curing said guides together, yielding meansdisposed between said members and flexible members disposed on saidbolts.

In testimony whereof I hereunto afiix my signature.

IRVIN F. DITTMAR.

